%% Copyright (C) 2007 Alois Schloegl 
%%
%% This program is free software; you can redistribute it and/or modify
%% it under the terms of the GNU General Public License as published by
%% the Free Software Foundation; either version 2 of the License, or
%% (at your option) any later version.
%%
%% This program is distributed in the hope that it will be useful,
%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
%% GNU General Public License for more details.
%%
%% You should have received a copy of the GNU General Public License
%% along with this program; if not, write to the Free Software
%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

%% spdiag (f)
%%    returns sparse diagonal matrix
%%    vector f specifies the diagonal elements 
%% 
%% needed for Matlab 2007b and higher 

function t = spdiag(x);
	t = sparse(1:length(x),1:length(x),x);
end

